Release Notes for Cloud Sync

Important Notes

1. Cloud Sync 2.7.2 was previously updated on April 8, 2025. This update includes all changes from Cloud Sync 2.7.2-2713.

Fixed Issues

1. Fixed unexpected issues encountered during the database upgrade process.

Important Notes

1. Cloud Sync 2.7.2 was previously updated on April 8, 2025. This update includes all changes from Cloud Sync 2.7.2-2463.

Fixed Issues

1. Fixed unexpected issues encountered during the database upgrade process.

Important Notes

1. Cloud Sync 2.7.2 was previously updated on April 1, 2025. This update includes all changes from Cloud Sync 2.7.2-2712.

Fixed Issues

1. Fixed unexpected issues encountered during the database upgrade process.

Important Notes

1. Cloud Sync 2.7.2 was previously updated on April 1, 2025. This update includes all changes from Cloud Sync 2.7.2-2462.

Fixed Issues

1. Fixed unexpected issues encountered during the database upgrade process.

What's New

1. Supports managing sync task priorities.
2. Supports downloading files with NFD characters in their names and converting them to NFC format when downloaded to Synology NAS (available only for Google Drive, Google Shared Drive, Microsoft OneDrive, Microsoft OneDrive for Business, and Microsoft SharePoint Online).
3. Enhanced sync performance for Alibaba Cloud Object Storage Service, Azure Storage, Backblaze B2, S3 storage, Google Cloud Storage, HiDrive, WebDAV, and Yandex Disk.

Fixed Issues

1. Adjusted rules for non-syncing files/folders:
   • Folder names end with a space.
   • Folder names end with a period (.).
   • File names on Microsoft OneDrive that begin with “Windows,” regardless of capitalization.
   • Google Earth file type on Google Drive and Google Shared Drive.
2. Modified deletion behavior for Dropbox Team Space:
   • When team folders are removed from Synology NAS, their corresponding team folders will be archived on Dropbox Team Space rather than permanently deleted.
3. Fixed an issue where sync tasks were unable to complete on specific entry-level models.
4. Fixed an issue that might cause sync tasks to fail under certain conditions for Box, Google Cloud Storage, Google Drive, and Microsoft OneDrive.
5. Fixed an issue where re-authentication of Microsoft OneDrive might fail.
6. Minor bug fixes.

What's New

1. Supports managing sync task priorities.
2. Supports downloading files with NFD characters in their names and converting them to NFC format when downloaded to Synology NAS (available only for Google Drive, Google Shared Drive, Microsoft OneDrive, Microsoft OneDrive for Business, and Microsoft SharePoint Online).
3. Enhanced sync performance for Alibaba Cloud Object Storage Service, Azure Storage, Backblaze B2, S3 storage, Google Cloud Storage, HiDrive, WebDAV, and Yandex Disk.

Fixed Issues

1. Adjusted rules for non-syncing files/folders:
   • Folder names end with a space.
   • Folder names end with a period (.).
   • File names on Microsoft OneDrive that begin with “Windows,” regardless of capitalization.
   • Google Earth file type on Google Drive and Google Shared Drive.
2. Modified deletion behavior for Dropbox Team Space:
   • When team folders are removed from Synology NAS, their corresponding team folders will be archived on Dropbox Team Space rather than permanently deleted.
3. Fixed an issue where sync tasks were unable to complete on specific entry-level models.
4. Fixed an issue that might cause sync tasks to fail under certain conditions for Box, Google Cloud Storage, Google Drive, and Microsoft OneDrive.
5. Fixed an issue where re-authentication of Microsoft OneDrive might fail.
6. Minor bug fixes.

Important Notes

1. Cloud Sync 2.7.1 was previously updated on October 1, 2024. This update includes all changes from Cloud Sync 2.7.1-2657.

Fixed Issues

1. Provided correct resolution for troubleshooting when re-authenticating a OneDrive account failed.

Important Notes

1. Cloud Sync 2.7.1 was previously updated on October 1, 2024. This update includes all changes from Cloud Sync 2.7.1-2407.

Fixed Issues

1. Provided correct resolution for troubleshooting when re-authenticating a OneDrive account failed.

Fixed Issues

1. Fixed an issue where the user interface might be stuck when syncing files or folders containing non-printing characters to OneDrive.
2. Fixed an issue where syncing files or folders to Dropbox might fail if their names contain non-printing characters.
3. Fixed an issue where administrators were unable to manage connections created by a user after that user’s account had been deleted.
4. Fixed an issue where reversing the order of subfolders and parent folders in OneDrive, OneDrive for Business, and SharePoint Online might lead to out-of-memory issues or package crashes.
5. Fixed an issue where syncing with OneDrive might prevent the Synology NAS from entering hibernation or cause poor syncing performance.
6. Fixed an issue where uploading a file larger than 20 MB to Box might fail if its parent folder was removed or if a bookmark with the same name already exists in the destination folder.
7. Minor bug fixes.

Fixed Issues

1. Fixed an issue where the user interface might be stuck when syncing files or folders containing non-printing characters to OneDrive.
2. Fixed an issue where syncing files or folders to Dropbox might fail if their names contain non-printing characters.
3. Fixed an issue where administrators were unable to manage connections created by a user after that user’s account had been deleted.
4. Fixed an issue where reversing the order of subfolders and parent folders in OneDrive, OneDrive for Business, and SharePoint Online might lead to out-of-memory issues or package crashes.
5. Fixed an issue where syncing with OneDrive might prevent the Synology NAS from entering hibernation or cause poor syncing performance.
6. Fixed an issue where uploading a file larger than 20 MB to Box might fail if its parent folder was removed or if a bookmark with the same name already exists in the destination folder.
7. Minor bug fixes.

Important Notes

1. In response to Dropbox's API change for team space, users must update Cloud Sync to version 2.7.0 for compatibility. If you are a Dropbox team space admin, it is required to unlink and then re-establish the connection using Cloud Sync to ensure proper syncing. Refer to this FAQ for more information.
2. Thirty minutes after Dropbox completes its API update, Cloud Sync will perform a thorough sync. The syncing duration may vary depending on your data volume and network speed.

What's New

1. Provided a connection tutorial for users who sign in to OneDrive via GoDaddy.

Fixed Issues

1. Minor bug fixes.

Important Notes

1. In response to Dropbox's API change for team space, users must update Cloud Sync to version 2.7.0 for compatibility. If you are a Dropbox team space admin, it is required to unlink and then re-establish the connection using Cloud Sync to ensure proper syncing. Refer to this FAQ for more information.
2. Thirty minutes after Dropbox completes its API update, Cloud Sync will perform a thorough sync. The syncing duration may vary depending on your data volume and network speed.

What's New

1. Provided a connection tutorial for users who sign in to OneDrive via GoDaddy.

Fixed Issues

1. Minor bug fixes.

Fixed Issues

1. Fixed an issue that prevented the creation of new connections with Dropbox Team Space due to recent Dropbox API changes.
2. Fixed an issue where files might be renamed when uploaded to OneDrive due to Microsoft's API error.
3. Fixed an issue where file names containing "\r" and "\n" characters, which are not supported by Google Cloud Storage, were incorrectly accepted during file synchronization.
4. Fixed an issue where changing the owner of a syncing folder on Google Drive might cause Cloud Sync to crash.
5. Fixed an issue that might slow down the downloading of remote changes from Microsoft OneDrive.
6. Fixed an issue where users might have insufficient permission when creating a WebDAV connection.
7. Fixed an issue where files might not be synced properly after uploaded to Microsoft SharePoint.
8. Fixed an issue where syncing with Baidu Cloud might not be properly performed due to Baidu's hash value error.
9. Fixed an issue where Cloud Sync might keep trying to download a missing file from Baidu Cloud.
10. Fixed an issue that caused the encryption key's file name to be incorrectly changed to "entry.cgi" instead of "key.zip" when using the Edge browser to create an encrypted task and download its encryption key.

Fixed Issues

1. Fixed an issue that prevented the creation of new connections with Dropbox Team Space due to recent Dropbox API changes.
2. Fixed an issue where files might be renamed when uploaded to OneDrive due to Microsoft's API error.
3. Fixed an issue where file names containing "\r" and "\n" characters, which are not supported by Google Cloud Storage, were incorrectly accepted during file synchronization.
4. Fixed an issue where changing the owner of a syncing folder on Google Drive might cause Cloud Sync to crash.
5. Fixed an issue that might slow down the downloading of remote changes from Microsoft OneDrive.
6. Fixed an issue where users might have insufficient permission when creating a WebDAV connection.
7. Fixed an issue where files might not be synced properly after uploaded to Microsoft SharePoint.
8. Fixed an issue where syncing with Baidu Cloud might not be properly performed due to Baidu's hash value error.
9. Fixed an issue where Cloud Sync might keep trying to download a missing file from Baidu Cloud.
10. Fixed an issue that caused the encryption key's file name to be incorrectly changed to "entry.cgi" instead of "key.zip" when using the Edge browser to create an encrypted task and download its encryption key.

Important Note

1. Users can connect to Box and create new tasks with this update.

Fixed Issues

1. Fixed an issue where a file might be renamed when syncing to Box because a file with the same name already exists.
2. Fixed an issue where syncing to Box could fail as the system did not request user re-authentication.
3. Fixed an issue where uploading files to Baidu Cloud might cause synchronization to be stuck.
4. Fixed an issue where files on Baidu Cloud might not be able to be downloaded.
5. Fixed an issue where uploading a file to Microsoft SharePoint might fail because a file with the same name already exists.
6. Fixed an issue where uploading a file to Microsoft SharePoint might fail because its parent folder is missing.
7. Fixed an issue where syncing files to a folder that had been moved or renamed on Microsoft SharePoint might result in unexpected file deletion on the NAS.
8. Fixed an issue where unknown shared folders might appear on DSM when using Hyper Backup to back up Cloud Sync.
9. Fixed an issue where file names containing invalid characters might cause synchronization to be stuck.
10. Fixed an issue where folders might be synced repeatedly to Backblaze B2 after renaming.
11. Fixed an issue where file conflicts might occur during the initial file synchronization to Google Drive when identical files were already present.
12. Fixed an issue where syncing files to WebDAV might take a longer time.
13. Fixed an issue where files containing unsupported names might cause synchronization to be stuck.
14. Fixed an issue where sending files via SMB protocol to a folder synced with Microsoft OneDrive might generate multiple duplicated files.
15. Fixed an issue where the container might not be listed due to authentication failure when creating a connection with OpenStack Swift.

Important Note

1. Users can connect to Box and create new tasks with this update.

Fixed Issues

1. Fixed an issue where a file might be renamed when syncing to Box because a file with the same name already exists.
2. Fixed an issue where syncing to Box could fail as the system did not request user re-authentication.
3. Fixed an issue where uploading files to Baidu Cloud might cause synchronization to be stuck.
4. Fixed an issue where files on Baidu Cloud might not be able to be downloaded.
5. Fixed an issue where uploading a file to Microsoft SharePoint might fail because a file with the same name already exists.
6. Fixed an issue where uploading a file to Microsoft SharePoint might fail because its parent folder is missing.
7. Fixed an issue where syncing files to a folder that had been moved or renamed on Microsoft SharePoint might result in unexpected file deletion on the NAS.
8. Fixed an issue where unknown shared folders might appear on DSM when using Hyper Backup to back up Cloud Sync.
9. Fixed an issue where file names containing invalid characters might cause synchronization to be stuck.
10. Fixed an issue where folders might be synced repeatedly to Backblaze B2 after renaming.
11. Fixed an issue where file conflicts might occur during the initial file synchronization to Google Drive when identical files were already present.
12. Fixed an issue where syncing files to WebDAV might take a longer time.
13. Fixed an issue where files containing unsupported names might cause synchronization to be stuck.
14. Fixed an issue where sending files via SMB protocol to a folder synced with Microsoft OneDrive might generate multiple duplicated files.
15. Fixed an issue where the container might not be listed due to authentication failure when creating a connection with OpenStack Swift.

Compatibility and Installation

1. Cloud Sync 2.6.1-2507 requires DSM 7.2 and above.

Fixed Issues

1. Fixed an issue where the initial connection to Microsoft SharePoint might fail due to insufficient permission errors.
2. Fixed an issue where the package might be stopped when users are synchronizing data with the following services: Synology C2 Object Storage, Alibaba Cloud OSS, hicloud S3, JD Cloud OSS, S3 Storage, Tencent Cloud COS.
3. Fixed an issue where moving folders in Google Drive, OneDrive, OneDrive for Business, and SharePoint might result in a loss of synchronized data.

What's New

1. Added support for Team Folder of upgraded Dropbox Business accounts (Team Space).
2. Added support for Synology C2 Object Storage. Learn more
3. Users can now upload files up to 250 GB in size to Microsoft SharePoint.

Fixed Issues

1. Fixed an issue where the synchronization might be stuck when syncing a filename with invalid characters to Microsoft OneDrive for Business.
2. Fixed an issue where the package might be stopped when a directory contained a large number of files.
3. Fixed an issue where the system might be incorrectly displayed as busy when users were creating a WebDAV connection.
4. Fixed an issue where syncing files to Azure Archive tier might fail.
5. Fixed an issue where files in Recycle Bin might be deleted earlier than scheduled.
6. Fixed an issue where the remote directory of a newly created sync task could not be listed after Dropbox connection was paused.
7. Fixed an issue where the files on Microsoft SharePoint might failed to be synced after being renamed.
8. Fixed an issue where the package might be stopped when syncing a shared folder with a large number of snapshots.
9. Fixed an issue where re-authentication of Baidu Cloud connection was required when Baidu Cloud's API returned abnormal responses.
10. Fixed an issue where file conflicts might occur on Microsoft OneDrive for Business when syncing a local directory that was once deleted and recreated.
11. Fixed an issue where the synchronization might be stuck when syncing files to Baidu Cloud.
12. Fixed an issue where the downloaded file might be duplicated when the file was uploaded to Backblaze B2 via 3rd party applications
13. Fixed an issue where creating the connection to Microsoft SharePoint or OneDrive for Business might fail if MFA was enabled for the account.
14. Fixed an issue where Baidu Cloud 0 byte files might not be synced.
15. Fixed an issue where SVIP accounts of Baidu Cloud might fail to sync files more than 4 GB.
16. Modified how users exclude files from syncing for file filters. The previous settings will not be modified.

Fixed issues

1. Fixed an issue where the package might be stopped when users moved the syncing folder on Google Drive and it contained lots of files.
2. Fixed an issue where the package might be stopped when users changed the order of parent and child folders on Box.
3. Fixed an issue where Google Drive syncing task might fail when the Jamboard files were included.
4. Fixed an issue where uploading large files from Synology devices with 32-bit CPU architecture to Box might fail.
5. Fixed an issue where users could not create task for the Microsoft SharePoint site which was without an owner.
6. Fixed an issue where the file with a large size on Amazon S3 might not be synced after being modified.
7. Fixed an issue where the task status might not be displayed correctly after DSM restart if the task was created by a local LDAP user account.
8. Fixed the issue where Microsoft OneDrive syncing task could not be completed when its directory contained a large number of files.
9. Fixed an issue where adding file names or types to the file filter might fail.
10. Supports group quota settings of the user account.
11. Fixed an issue where Cloud Sync desktop notifications could not be disabled.

Important Note

1. Starting July 31, 2021, SFR discontinues access to SFR NAS Backup through Cloud Sync.

What's new

1. Added support for configuring a maximum size limitation (up to 250 GB) per file for uploads to OneDrive or OneDrive for Business.

Fixed issues

1. Fixed an issue where the authentication of SharePoint might fail after Azure AD admin changed "User Consent Settings".
2. Fixed an issue where tasks on a Synology NAS bound to a directory service might not be synced properly after a restart of the directory server.

Important Note

1. Starting April 30, 2020, HiDrive no longer offers free accounts. If you wish to continue using HiDrive, please upgrade your HiDrive plan.
2. Starting November 1, 2020, Amazon discontinues access to Amazon Drive through Cloud Sync.
3. Cloud Sync no longer supports syncing the last modified time of files to Microsoft OneDrive for Business and Microsoft SharePoint. This helps reduce unnecessary storage usage.

Compatibility and Installation

1. Updated to be compatible with DSM 7.0.

What's New

1. Supports backing up and restoring package configuration via Hyper Backup.
2. Supports listing files that failed to be synced and the causes in the History tab.
3. Reduced memory usage when syncing a large number of files.
4. Increased the maximum upload file size to 110 GB for OneDrive.
5. Added support for Document Library in Microsoft SharePoint.
6. Added support for Google shared drives (formerly named Team Drives).
7. Added support for chunked uploads for Box.
8. Supports syncing the last modified time of files to Box.
9. Updated the Dropbox API.
10. Updated the Google Drive API.
11. Updated the MegaDisk API.